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Forging new generations of engineers PowerPoint PPT Presentation


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Forging new generations of engineers. Tensile Test Report. Graphical Analysis and Computational Results of Collected Data. Tensile Report Layout . Your Tensile report will include 10 pages which will contain the following information: Title page

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Forging new generations of engineers

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Forging new generations of engineers


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Tensile Test Report

Graphical Analysis

and

Computational Results

of Collected Data


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Tensile Report Layout

Your Tensile report will include 10 pages which will contain the following information:

  • Title page

  • Statistical Process Control Data collected from tensile data

  • Proportional Strength - Definition-graph-calculation

  • Yield Strength - Definition-graph-calculation

  • Tensile or Ultimate Strength - Definition-graph-calculation

  • Breaking/Rupture Strength - Definition-graph-calculation

  • Modulus of Elasticity - Definition-graph-calculation

  • Modulus of Resilience - Definition-graph-calculation

  • Modulus of Toughness - Definition-graph-calculation

  • Calculations Page - data not needing graphical representation


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Title Page

  • Major Topic Heading

  • Course Name

  • Topic of Paper

  • Student Name

  • Instructor

  • Date

  • Period


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Statistical Process Control

Aluminum Data

Statistical Process Control Data

  • Cut SPC data sheet into sections and glue to titled page

  • Break information into appropriate sections.

    e.g. Recorded Data

    Results

    Histogram


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Proportional Limit Stress

Proportional Limit - The greatest stress a material is capable of withstanding without deviation from a straight -line proportionality between stress and strain. If the force applied to the material is released the material will return to it’s original shape and size.

Graph

Calculation

S = F / A


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Yield Point Stress

Yield point - The point at which a sudden elongation takes place, while the load on the sample remains the same or actually drops. If the force applied to the material is released the material will not return to it’s original shape and size.

Calculation

S = F / A

Graph


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Ultimate or Tensile Stress

Ultimate Strength - The point at which the maximum load for a sample is achieved. Beyond this point, elongation of the sample continues but the force being exerted decreases.

Graph

Calculation

S = F / A


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Breaking/Rupture Stress

Breaking/Rupture Stress - The maximum amount of stress that can be applied before rupture occurs. The material fractures in the necking region where the material reduces in diameter as the material elongates.

Calculation

S = F / A

Graph


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Modulus of Elasticity

Modulus of Elasticity -A measure of a materials ability to regain its original dimensions after the removal of a load or force. The modulus is the slope of the straight line portion of the stress-strain diagram up to the proportional limit.

Calculation

E = (F1 -F2)Lo / (1 -2)A

Graph


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Elastic Limit

Modulus of Resilience

Modulus of Resilience -A measure of a materials ability to absorb energy up to the elastic limit. This modulus is represented by the area under the stress versus strain curve from zero force to the elastic limit.

Calculation

Ur = 1/2 (yp)(yp)

Graph


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Modulus of Toughness

Modulus of Toughness -A measure of a materials ability to plastically deform without fracturing. Work is performed by the material absorbing energy by the blow or deformation. This measurement is equal to the area under the stress versus strain curve from its origin through the rupture point.

Calculation:

Ut = 1/3(Br) (yp + 2ult)

Graph


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Calculation Page

Total Strain/ Deformation -The total amount of elongation of a sample to rupture normalized(divided by) by the initial length.

Calculation:

total = total/Lo

Ductility:The ability of a material to be deformed plastically without rupture.

Calculation: % Elongation = total(100)

Ductility:The ability of a material to be deformed plastically without rupture.

Calculations:

% Reduction in area = Aoriginal - A final / A original (100)


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